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Tracing the haze: satellite-based assessment of stubble burning and air quality in Delhi. [PDF]
Air Qual Atmos HealthKotrike T, Sridhar V.
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Deciphering the Hidden Ecology and Connectivity of Vibrio in the Oceans. [PDF]
Nat CommunDoni L +4 more
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Long-term random sampling confirms high-use areas and indicates declining abundance of juvenile smalltooth sawfish (Pristis pectinata) in Charlotte Harbor, Florida. [PDF]
Sci RepFarmer NA +7 more
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On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands
IEEE Transactions on Geoscience and Remote Sensing, 2022The NOAA-20 (N20) satellite was launched on November 18, 2017 carrying the second Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. Immediately following the launch, the VIIRS passed a series of intensive calibration and validation tests, after which regular calibration and operation activities have continued successfully for more than ...
Kevin A. Twedt +6 more
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NOAA-20 VIIRS on-Orbit Calibration Improvements
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020The NOAA-20 (N-20) VIIRS has successfully operated for more than two years since its launch in November 2017. Shortly after completing its initial instrument check-outs and post-launch testing (PLT) activities, the N-20 VIIRS sensor data records (SDR) achieved the beta, provisional, and validated maturity status in January, February, and April 2018 ...
Xiaoxiong Xiong +12 more
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Crosstalk Effect in NOAA 20 VIIRS Thermal Emissive Bands
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020Crosstalk contamination in the Moderate Resolution Imaging Spectroradiometer (MODIS) thermal emissive bands (TEBs) has been a known issue since prelaunch, that has amplified on-orbit for some of bands. A linear algorithm has been developed and successfully applied to mitigate the crosstalk effect and restore the quality and accuracy of the MODIS L1B ...
Junqiang Sun, Xiaoxiong Xiong
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2-D Lunar Microwave Radiance Observations From the NOAA-20 ATMS
IEEE Geoscience and Remote Sensing Letters, 2021Reported here are disk-integrated Moon surface microwave brightness temperature ( $Tb$ ) retrievals covering the frequency range of 23–183 GHz. Full Moon observations obtained from the advanced technology microwave sounder (ATMS) onboard the NOAA-20 satellite during a special spacecraft pitch–maneuver operation forms the basis of the retrievals ...
Hu Yang 0002 +9 more
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NOAA-20 VIIRS On-Orbit Calibration and Performance Update
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019Launched in November 2017, the NOAA-20 (N-20) VIIRS has successfully completed more than 1.5 years of on-orbit operations. In addition to initial post-launch check-outs followed by a series of intensive calibration and validation activities, the instrument performed a mid-mission outgassing in March 2018 to remove the ice buildup on the dewar window of
Xiaoxiong Xiong +6 more
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